363840185820 has 48 divisors (see below), whose sum is σ = 1023320954880. Its totient is φ = 96588960576.

The previous prime is 363840185809. The next prime is 363840185827. The reversal of 363840185820 is 28581048363.

It is a self number, because there is not a number n which added to its sum of digits gives 363840185820.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (363840185827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13583040 + ... + 13609799.

It is an arithmetic number, because the mean of its divisors is an integer number (21319186560).

Almost surely, 2^363840185820 is an apocalyptic number.

363840185820 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

363840185820 is an abundant number, since it is smaller than the sum of its proper divisors (659480769060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

363840185820 is a wasteful number, since it uses less digits than its factorization.

363840185820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27193074 (or 27193072 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 48.

The spelling of 363840185820 in words is "three hundred sixty-three billion, eight hundred forty million, one hundred eighty-five thousand, eight hundred twenty".